For the past week or so, Izuku Midoriya couldn't focus... It was a surprisingly calm week, too calm. The racing train of thoughts couldn't leave him alone... Maybe he had been tense for too long, maybe he's just paranoid... But he can't help it.

Tenya Iida — class' president, and his friend he bonded with from the start of the year... Everything seemed wrong... Everything was the same... But it ALL felt wrong, simply because of small details he couldn't help but noticed... The way you seat felt just a fraction too slumped, your gestures just slightly too exaggerated and overdone. But... Even if it's not real Iida, how could they mimic his quirk?... Although, even quirk felt weird. The sounds of engines were slightly quieter, the speed was slower... Even though you excused that your quirk seemed to malfunction after the latest mission you had... But the hardest piece of evidence was hand movement. Iida's left hand was more stiff due to what happened when they encountered Stain... Yet, you moved it with no problem, almost as if it was fully healthy...

Everyone else? They don't seem to notice this... Only Izuku does... None of the teachers, none of the classmates...

RRINGGG!!!

Izuku snapped awake... He zoned out during the class! Crap... Situation with Tenya-san really took over his mind. He can't let it bother his learning process... But he can't leave it either... Some lizard in his head doesn't let him

Ochako: "Hey, Deku!! Wake up!" She called him out. Izuku looked at her with a questioning look "We planned to go for a walk with Iida! You seemed all tense lately sooo we got some plans to help you chill out!" She smiled brightly. Izuku paused for a moment, but agreed. A nice little hang out with his friends could help his paranoia... Or so he thought...

You visited quite a few places, but Izuku still couldn't pull himself together. If anything — all the details he was noticing for the past week seemed to only become more vivid. Ochako, focused more on Deku, didn't noticed any of this... But he did...

And the final piece of evidence Izuku couldn't ignore... Ochako told some sort of story, which Midoriya let to go through another ear. But then, a laugh. A laugh that seemed a little too genuine for a reserved Iida he knows

Ochako: "You seem to be in good mood, Iida-kun!" She commented, chucking.

She dismissed it as him simply being in good mood... But there were too much of such "coincidences"... No, Izuku was sure... It was becoming too much to ignore...

Ochako: "Sorry guys, I need to return to dorms! Tsuyu and I agreed to study together today! You two can have fun together!" Uraraka said after few hours of hanging out. You nodded, saying it's alright, and that it's good she's being responsible... Pretty much what Iida would say...

You two were left alone... Izuku felt nervous... He needed to say it... And then he finally got an opportunity to. You decided to take a shortcut through an alleyway... And then, Izuku stopped... You looked back, asking him what's wrong...

Izuku: "I can't help but notice..." He looked down saying it, but then his gaze raised. He looked at you, dead in the eyes. "The way you talk, the way you act... It's all seem like Iida... But those small details that are wrong peck my mind... Especially your left hand. After encounter with Stain, it got damaged, so it always was just slightly more stiff than other..." He paused... "You're not Iida, are you...?"

... You thought you copied him perfectly... What a shame